GEI-1 UNIT2 GRAMMAR1

If scientists invent a robot that can cook,

• we will never have to worry about dinner.

• we would enjoy restaurant-quality meals at home.

• we might learn new recipes.

• people like cooking more.

We will save a lot of time if

• someone will invent a self-cleaning house.

• someone invents a self-cleaning house.

• someone invented a self-cleaning house.

• someone had invented a self-cleaning house.

If engineers create a flying car,

• traveling will become faster.

• traveling would become faster.

• traveling becomes faster.

• traveling might become faster.

If you buy a solar-powered phone,

• you save energy.

• you will save energy.

• you would save energy.

• you might save energy.

People will read faster if

• they used smart glasses with a speed-reading feature.

• they use smart glasses with a speed-reading feature.

• they will use smart glasses with a speed-reading feature.

• they had used smart glasses with a speed-reading feature.

If 3D printers become cheaper,

• everyone will print their own custom items.

• everyone would print their own custom items.

• everyone might print their own custom items.

• everyone printed their own custom items.

We will reduce waste if

• people invent more upcycled materials.

• people invented more upcycled materials.

• people will invent more upcycled materials.

• people inventing more upcycled materials.

If a time machine is created,

• historians will study history firsthand.

• historians study history firsthand.

• historians studied history firsthand.

• historians would study history firsthand.

If someone designs a water purifier for homes,

• many families will have access to clean water.

• many families might have access to clean water.

• many families would have access to clean water.

• many families had access to clean water.

People will avoid traffic jams if

• they invent better traffic management systems.

• they invented better traffic management systems.

• they invents better traffic management systems.

• they had invented better traffic management systems.